摘要
采用自制硫化物助浸剂在密闭反应釜中还原浸出硫酸烧渣中的铁。分别进行了助浸剂用量、硫酸用量、始酸浓度、反应温度、搅拌速度、反应时间等条件试验,考察各因素对浸取效果的影响。结果表明:当酸浸渣25.0g,助浸剂过剩系数1.1,硫酸过剩系数1.4,始酸浓度3.5mol/L,反应温度95℃,搅拌速度800r/min,反应时间3h时,铁浸取率达99.4%,助浸剂有效利用率达98.9%。
Ferric iron was reduction leached from sulfate slag with sulfide agent. Effects of the following factors on leaching were studied, such as, dosage of additives, sulfuric acid consumption, initial sulfuric acid concentration, reaction temperature, stirring speed, and reaction time. The results show that iron leaching rate reaches 99.4%, efficiency of additive usage reaches 98.9% on the following conditions： sur- plus coefficient of leaching agent is 1.1, surplus coefficient of sulfuric acid is 1.4, 3.5 mol/L initial sulfuric acid concentration with 800 r/min stirring rate, 95 ℃, 3 h.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2011年第11期6-8,16,共4页
Nonferrous Metals（Extractive Metallurgy)
基金
国家高技术研究发展计划(863计划)资助项目(2006AA06Z132)
上海市重点学科建设资助项目(B604)
关键词
硫酸烧渣
高铁
助浸剂
硫化物
Sulfate slag
Ferric iron
Leaching agent
Sulfide
